Secondary Structures for Family S9
| S09.001: prolyl oligopeptidase 1QFS |
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| S09.003: dipeptidyl-peptidase IV (eukaryote) 1N1M_A |
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| S09.007: fibroblast activation protein alpha subunit 1Z68_A |
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| S09.009: dipeptidyl-peptidase 4 (bacteria-type 1) 2ECF |
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| S09.017: prolyl tripeptidyl peptidase 2Z3Z_A |
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| S09.024: Mername-AA264 putative peptidase (LP_1002 protein) (Lactobacillus plantarum) 3BJR |
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| S09.070: acylaminoacyl peptidase (Aeropyrum-type) 1VE6 |
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